About StumbleUpon
StumbleUpon is a vivid, mid-toned red-orange at #f74425, sitting closest to terracotta on the color wheel. In color psychology it reads as earthy, warm, and homey — a vivid presence and a warm cast, and it brings noticeable energy to a layout.
For text on StumbleUpon, black performs best at 5.81:1 — passing WCAG AA. In a palette it suits primary roles. StumbleUpon is mapped to the "Uncategorized" theme.
Contrast Accessibility
With white
3.62:1
With black
5.81:1
Color Conversions
#f74425
rgb(247, 68, 37)
hsl(9°, 93%, 56%)
oklch(0.647 0.220 32.2)
cmyk(0%, 7200%, 8500%, 300%)
Tint & Shade Scale
A 10-step scale from light to dark, anchored to the base color at step 500. Click any swatch to copy its hex.
Tone Scale
Color mixed with gray — reduces saturation without changing lightness. Click any swatch to copy its hex.
Temperature
Hue shifted cooler and warmer in equal steps. Click any swatch to copy its hex.
Color Psychology
Adds: confidence, vibrancy, dynamism, boldness, intensity · Reduces: subtlety
Palette Narrative
A thoughtfully curated palette evoking confident, earthy, homey. Well-suited for artisan and bold brand contexts. A focused selection that communicates intent clearly.
Inspired Palettes
Shades
Lightness variations keeping hue and chroma intact
Monochromatic
Single hue with varied lightness and chroma
Complementary
Opposite hues on the color wheel for maximum contrast
Triadic
Three evenly spaced hues for vibrant balance
Analogous
Neighboring hues for natural, serene combinations
Split Complementary
Complement split into two flanking hues
Generic Gradient
Smooth lightness ramp from dark to light
Matching Gradient
Lightness ramp with a gentle hue drift
Skip Gradient
Alternating light and dark steps for rhythm
9 of 28 palettes from #f74425
Similar Colors
Orangey Red
#FA4224deltaE 0.0Chinese Goldfish
#F34723deltaE 0.0Reddish Orange
#F8481CdeltaE 0.0Chéng Hóng Sè Orange
#F94009deltaE 0.0Spiritstone Red
#FD411EdeltaE 0.028913 - Fluorescent - Red
#F64336deltaE 0.0